Call control based terminal-to-terminal breakpoint transmission method

Abstract

The invention discloses end-to-end break transferring method based on call control, on the TCP layer based on equal network transmission, the receiver loads the dynamic linking library, and it can realize the end-to-end break transferring via the interface of application program, the steps includes: first the transmitter initializes, starts the main line program of monitoring; when one starts transmitting files or one requires the other to transmit files, it enters the transmitting flow, after the transmitting-receiving sides make agreement, the transmitter starts to transmit file, and the transmitting-receiving sides record the start location and the length of file automatically, if one exit in the transmitting course, and then enters the breaking flow, and the breakpoint file is recorded on the log; next time one side requires the file transmission, then enter the anew transmitting flow, until the file is load completely. The invention solves the problems that scope of application of the break transferring function is single, it has extended scope, the break transferring method can be used in any communication mode in IP network to transmit data to solve the data break problems;it can search and negotiates the data source automatically.

Description

Technical field [0001] The invention relates to a data transmission interruption processing method in computer network communication, in particular to an end-to-end interruption resuming transmission method based on call control, and belongs to the field of network communication. Background technique [0002] In the data transmission of the IP network, when the network quality is poor, the data receiving party is disconnected, the data provider is disconnected, etc., it will cause the interruption of the data, and the data that has been transmitted is incomplete, and when the data needs to be used It is necessary to retransmit new files, which brings inconvenience to users and waste of network resources. Therefore, many solutions are dedicated to solving this problem, and various methods of resumable transmission have been proposed. There are two main technologies used: [0003] One is to focus on solving the problem of data interruption on the HTTP and FTP protocol layers: In the...

AI Technical Summary

Problems solved by technology

[0006] The disadvantage of this solution is that it is completely free and equal, without trust and security control, and the quality and copyright of data sources cannot be guaranteed. At the same time, publishing data and searching data will bring about copyright issues and information asymmetry. At the same time, the data transmission process is also difficult It cannot be controlled by the user, such as prompting who the other party is, rejecting a user's transmission, interrupting the transmission, etc.; at the same time, because publishing, searching and transmission are integrated, it is necessary to make a separate seed for publishing

[0007] At present, the solution of breakpoint resume function in the market is to solve the problem of data transmission in C / S mode, which cannot be used in other network communication modes, especially the problem of end-to-end data transmission in peer-to-peer network has not been solved.

Images